She is a big big fan of Rihanna, but still Adele has banned herself from hanging out with her the night before she plays Glastonbury in order to not lose her voice.
The 27-year-old songstress told her fans that she had been forced to rule out a night out at Rihanna's Wembley gig in June, because it will take place mere hours before she is due to perform on Worthy Farm, reports the Mirror.
Adele said that she loves Rihanna and is thinking of going to Coventry to watch the pop star because she's playing Wembley the day before she plays Glastonbury, but if she does that, she will have no voice and she knows it, she will get stoned.
Earlier, Adele told her fans that she had put herself on a strict diet to avoid damaging her voice. She gave up smoking in 2014.
She suffered a vocal haemorrhage in 2011 and required surgery on her vocal chords, which saw her forced to shelve the rest of her tour.